Misha Collins is an American actor best known for his role as the angel Castiel on the TV series Supernatural (2005). He has had recurring roles on ER and 24, and has guest-starred on NCIS, Nip/Tuck, NYPD Blue, CSI, CSI:NY, Monk and Charmed. On the big screen, Misha is most known for his role in a film called "Karla" about a real life serial killer...